Tire.



A. W. LIVINGSTON.

am. 1 9 1 2| 2 L P E S m m I wu.. c T F fr.; N 0 I T A, C I L P P A.

Patented Feb. 2, 1915 fag. .s

IN VEN TOR WITNESSES:

77 Jian Andrew Mf. Lz'vz Mmm/Er TINTTFD sTATFs PATENT oFFroF.

i ANDREW W. LIVINGSTON, OF OAKLAND, CALIFORNIA, ASSIGNOR TO STANDARDSTEEL WHEEL .AND TIRE ARMOR COMPANY, OF OAKLAND, CALIFORNIA, ACORPORATION OF ARIZONA.

TIRE.

Specification of Letters Patent.

Patented Feb. a, 1915.-

To all whom t may concern:

Be it known that I, ANDREW W. LIVING- sToN, a citizen of the UnitedStates, residing at tain new and useful Improvements in Tires, of whichthe following is a speciication.

This invention relates to-improvements in pneumatic tires the object ofwhich is to construct a tire having an interior metallic protectingarmor, which will not lessen the resiliency of the tire. With this endin view the armor consists of a plurality of interlocking plates placedbetween the inner tube and outer casing, said plates being capable of aslight movement one on the other which allows the tire to be deformed atany point.

lVith these objects in view my invention consists in the new and novelarrangement and construction of parts as herein described andillustrated in the accompanying drawing and as more particularly pointedout in the annexed claims.

For a full comprehension of the invention reference should be had to thedrawings forming a part of this specification wherein,

Figure 1 is a view in section of a portion of tire showing the improvedflexible armor arranged therein. Fig. 2 is a view in cross section ofthe tire on the line 2 2 Fig. 1. Fig. 3 is a view partly in endelevation` and partly in section of what is hereinafter termed thelocking member. Fig. 4 is a view in end elevation of an armor plate.Fig. 5 is a top plan view of one section of the armor.

Denoting the same parts in the several views by corresponding numerals 1is an outer casing having any of the usual shapes, in fact, is a stockcasing. 2 is an inner tube of heavier construction than usual, beingmade to withstand the usual pressure of inflation. The outer casing ispreserved in shape by means of circumferential strips 3 vulcanized onthe sides of the inner tube, and a strip 4 vulcanized on the outerperiphery thereof. This strip 4 is made flat and interposed between thesame and the inside of casing 1 is the improved armor. This latterconsists of the circumferentially disposed plates 5 and the lockingmembers 6. Plates 5 are formed of a fiat central portion 7 having awidth equal to the strip 4 and a length depending on the curvature ofthe tire. On each side of this Oakland, in the county of AlamedaandState of California, have inventedcer portion are formed arms 8 curvedto t the inside of the casing and having a bead 9 formed on the edgethereof. Each end of 7 1s provided with an upturned curved bead l0 onwhich the locking member ts, and in the center is formed a raised lug11. The latter is provided to give additional surface on which tovulcanize the rubber block 12. This block is segmental in cross section,and fits within the segment formed between the inside of the casing andthe Hat portion 7 and has a length shorter than the distance between thebeads 10. These blocks serve to support the tread of the tire andtransmit the compression to the strip 4, and the inner tube.

The members 5 are placed close together and over adjacent beads 10 isplaced the locking bar 6, formed with the straight central portion 13,having downturned edges 14. These edges engage the inside of beads 10and prevent longitudinal movement between the plates 5 except the smallamount allowed by the clearance between parts. On the sides of 6 areformed arms 15 which fit over the arms 8 as shown in Fig. 2 and thesearms are provided with a curved edge 16, which partly embraces the bead9. Thus when assembled the locking bars 6 cover the opening betweenadjacent members 5 performing the double function of binding the memberstogether and preventing any sharp instrument entering therebetween. Inuse enough iiexibility is provided between adjacent sections that thearmor can accommodate itself to the deformation of the tire as it rollsalong the ground.

While I have shown the present and preferred embodiment of the inventionit will be understood that changes may be made in details ofconstruction without departing from the spirit thereof.

What I claim as new and wish to cover by Letters Patent is 1. Apneumatic tire comprising an outer casing, an inner tube havingsuiiicient strength to resist the pressure of inflation,circumferentially disposed strips vulcanized on said inner tube toretain the outer casing in shape, one of said strips being arrangedaround the outer surface of said inner tube and having a fiat surface,an armoring element disposed between said iat surface and said outercasing.

2. A. pneumatic tire comprising an outer casing, an inner tube, andailex'ibil'e portion; said 'looking member `comprising, Y a coneavedportion adapted Ato engage the" apamed baas of adjacenfafmof' prima,seribed In testimony whereof I aiiX my signature `in presence of tWoWitnesses.

A-N LIVINGSTON. WVitnesses: A

R. M. OYARzo, J. jM. BENHAM. f

Copies of thispatenbmay be 'obtained for dive cents each, -by'addressng-the Commissioner of vPaten-its',

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